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Hawker® Submarine Batteries

EnerSys® has been designing and manufacturing cutting-edge submarine batteries for well over a century. Today, Hawker® submarine VRLA (SVRLA) batteries are qualified for and actively used in all 4 classes of US Navy nuclear submarines.

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A range of designs to power propulsion

Hawker submarine batteries span a wide range of tubular and flat plate cells that serve as both standby batteries in nuclear-powered submarines and as the main propulsion in diesel electric submarines. Our Thin Plate Pure Lead (TPPL) batteries are sealed, maintenance-free and at the leading edge of energy storage technology. EnerSys pioneered this technology in partnership with the US Navy.

  • Hawker SVRLA batteries use Proprietary Thin Plate Pure Lead (TPPL) technology
  • Absorbed Glass Mat (AGM) Design
  • US Navy “B Cell” and “C Cell” per MIL PRF 32273
  • Qualified for use on all 4 classes of US Navy submarines
  • Available for purchase to anyone (Subject to US Export Laws and Regulations)
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Product Specification

Take a look at the following Hawker Submarine product specification:


Submarines & Underwater Vehicles

Technology / Chemistry

Thin plate pure lead

Capacity (Min) - Europe standard


Capacity (Max) - Europe standard


Capacity Europe standard


Capacity (Min) - US standard


Capacity (Max) - US standard


Capacity US standard


Voltage (Min)


Voltage (Max)



Front terminal

Top terminal